Characteristics of THz-wave radiation using a monolithic grating coupler on a LiNbO3 crystal

Kodo Kawase; Manabu Sato; Tetsuo Taniuchi; Hiromasa Ito

doi:10.1007/BF02069458

Characteristics of THz-wave radiation using a monolithic grating coupler on a LiNbO₃ crystal

Kodo Kawase, Manabu Sato, Tetsuo Taniuchi, Hiromasa Ito

Advanced Interdisciplinary Research Division

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Wide tunable terahertz (THz) wave generation was successfully demonstrated utilizing a grating coupler fabricated on the surface of a LiNbO₃ crystal which was pumped by a Q-switched Nd:YAG laser. In this paper, we report the detailed characteristics of the oscillation and the radiation including tunability, spatial and temporal coherency, directivity, and efficiency. Oscillation using a LiTaO₃ crystal was also performed, in which experimental phasematching condition values agreed well with the calculated one.

Original language	English
Pages (from-to)	1839-1849
Number of pages	11
Journal	International Journal of Infrared and Millimeter Waves
Volume	17
Issue number	11
DOIs	https://doi.org/10.1007/BF02069458
Publication status	Published - 1996 Jan 1

ASJC Scopus subject areas

Radiation
Atomic and Molecular Physics, and Optics
Instrumentation
Condensed Matter Physics
Physics and Astronomy (miscellaneous)
Electrical and Electronic Engineering

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T1 - Characteristics of THz-wave radiation using a monolithic grating coupler on a LiNbO3 crystal

AU - Kawase, Kodo

AU - Sato, Manabu

AU - Taniuchi, Tetsuo

AU - Ito, Hiromasa

PY - 1996/1/1

Y1 - 1996/1/1

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AB - Wide tunable terahertz (THz) wave generation was successfully demonstrated utilizing a grating coupler fabricated on the surface of a LiNbO3 crystal which was pumped by a Q-switched Nd:YAG laser. In this paper, we report the detailed characteristics of the oscillation and the radiation including tunability, spatial and temporal coherency, directivity, and efficiency. Oscillation using a LiTaO3 crystal was also performed, in which experimental phasematching condition values agreed well with the calculated one.

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